New constraints on a light spinless particle coupled to photons

被引：72

作者：

Masso, E ^{[1
]}

Toldra, R ^{[1
]}

机构：

[1] UNIV AUTONOMA BARCELONA,IFAE,E-08193 BELLATERRA,SPAIN

来源：

PHYSICAL REVIEW D | 1997年 / 55卷 / 12期

关键词：

D O I：

10.1103/PhysRevD.55.7967

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We obtain new stringent constraints on a light spinless particle phi coupled only to photons at low energies, considering its effects on the extragalactic photon background, the black-body spectrum of the cosmic microwave background radiation and the cosmological abundance of deuterium.

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页码：7967 / 7969

页数：3

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